如何在flutter中使用agora设置视频通话？

import 'package:agora_rtc_engine/agora_rtc_engine.dart';

void initState() {
  super.initState();
  initializeAgora();
}

Future<void> initializeAgora() async {
  await AgoraRtcEngine.create('YOUR_APP_ID');
  await AgoraRtcEngine.enableVideo();
  AgoraRtcEngine.onJoinChannelSuccess = (String channel, int uid, int elapsed) {
    // 加入频道成功后的回调
  };
  AgoraRtcEngine.onUserJoined = (int uid, int elapsed) {
    // 有用户加入频道的回调
  };
  AgoraRtcEngine.onUserOffline = (int uid, int reason) {
    // 有用户离开频道的回调
  };
  // 更多事件回调可以根据需要添加
  // ...
  await AgoraRtcEngine.joinChannel(null, 'YOUR_CHANNEL_NAME', null, 0);
}

@override
Widget build(BuildContext context) {
  return Scaffold(
    appBar: AppBar(
      title: Text('Agora Video Call'),
    ),
    body: Center(
      child: AgoraRenderWidget(0, local: true),
    ),
  );
}